PHILINTE: And if goodness were found on every side,
If all men’s hearts were docile, frank, and just,
Most of our virtues would but gather rust,
Since they can serve to help us calmly bear
The injustices that face us everywhere.

[Et si de probité tout était revêtu,
Si tous les cœurs étaient francs, justes, et dociles,
La plupart des vertus nous seraient inutiles,
Puisqu’on en met l’usage à pouvoir sans ennui
Supporter, dans nos droits, l’injustice d’autrui.]

Molière (1622-1673) French playwright, actor [stage name for Jean-Baptiste Poquelin]

Le Misanthrope, Act 5, sc. 1, ll. 1564ff (1666) [tr. Frame (1967)]
    (Source)

(Source (French)). Alternate translations:

If probity reigned everywhere, if all hearts were candid, just, and tractable, most of our virtues would be useless to us, inasmuch as their functions are to bear, without annoyance, the injustices of others in our good cause.
[tr. Van Laun (1878)]

If everything were clothed with integrity, and all hearts were frank, just, and docile, most of our virtue would be useless, since we can only use them in bearing the injustice of others in respect to our rights.
[tr. Matthew (1890)]

If everyone were clothed with integrity,
If every heart were just, frank, kindly,
The other virtues would be well-nigh useless,
Since their chief purpose is to make us bear with patience
The injustice of our fellows.
[tr. Wormeley (1894)]

If probity reigned everywhere, if all hearts were open, just and tractable, most of our virtues would be useless to us, for their office is to bear, without annoyance, the injustice of others when we have justice on our side.
[tr. Waller (1903)]

If everything were clothed in probity,
If all men's hearts were open, just, gentle,
Most of our virtues would be wholly useless,
Since we employ them now, in cheerfully
Enduring wrong, with right on our side.
[tr. Page (1913)]

If honesty shone forth from all men's eyes,
If every heart were frank and kind and just,
What could our virtues do but gather dust
(Since their employment is to help us bear
The villainies of men without despair)?
[tr. Wilbur (1954)]

If truth and rectitude were universal,
If every heart were frank and reasonable,
Most of the virtues would be meaningless,
Because they enable us to bear serenely
The injustice of others, when our cause is just.
[tr. Bishop (1957)]